Avorth



c. n. AINSWORTH.

covsn LOCK.

APPLICATION FILED JAN. H1918. 1,321,582.

JF-evereifar;

w B "w- Q11 I Patented Nov. 11, 1919.

H TED STATES PATENT OFFICE.

CHESTER D. AINSWORTH, OF WOLLASTON, MASSACHUSETTS, ASSIGNOR TO SEARS B.

' CONDIT, JR., OF BOSTON, MASSACHUSETTS.

COVERFLOCK.

Specification of Letters Patent.

Patented-Nov. 11, 1919.

Application filed January 4, 1918. Serial No. 210,394.

My invention relates to-locks for covers of receptacles, and has for its object the provision of a lock, the component parts of which are secured. to the receptacle or cover, against unintentional removal therefrom, that is simple in. operation, that securely locks the cover to the receptacle and that is inexpensive in construction.

The means I employ to attainthe object of my invention is in the provision of complementary slotted members in the cover and wall of the receptacle, and a loosestrip.

arranged in a slotted member of the wall 1 of the receptacle against unintentional re moval therefrom, and arranged to be moved in one position to permit the engagement of the slotted portion of the cover and thereafter to be rotated to a second position to thereby lock the cover against removal from the receptacle.

My invention is shown but not claimed in my co-pending application filed August 2, 1918, Serial No. 2 17 ,932.

Figure 1 is a sectional detail of the lock.

Fig. 2 is a side view of the lock.

Fig. 3 illustrates the cover and wall of the receptacle in disengaged position.

Fig. .4 illustrates a cover and wall of the receptacle in engaging position.

Fig. 5 is a detail of a slotted locking member.

As here shown, the cover portion 10 of the receptacle is formed with a downwardly bent edge portion 11, which is arranged to snugly engage the wall 12' of the receptacle to more effectively cover the junction between said cover 10 and wall 12 of the receptacle.

A lug orcear 13 is secured by means of rivets 13 to the inner surface of said cover, and depends within the receptacle in spaced relation to the wall 12 thereof. Said lug or ear 13 is formed with two diametrically opposed sectoral slots 14 and 15, having parallel walls 16 and 17. Said walls 16 and 17 are parallelly arranged upon opposite sides of the horizontal diameter in spaced relation, whereby the locking strip may be disposed therein The .wall portion 12 of the receptacle is formed with similar slots or openings therein, and when the cover portion 11 is placed in engaging position with the receptacle, the

sectoral slots in the depending ear 13 and the wall 12 of the receptacle are arranged to be in alinement.

A locking member, comprising a flat portion 18, is arranged within the slot in the wall 12, and is of a length sufficient to project through and beyond the depending lug 13 in the locked position of the cover. The end of said locking member within the receptacle is reflexed at 19, and that portion of the locking member without the receptacle' is bent, as at 20, to form a handle I portion.

The reflexed portions 19 and 20 form means whereby the locking member is maintained in the wall of the receptacle against unintentional removal therefrom.

The depending ear 13 of the cover 10 is formed with a vertical slot 21 opening into the slotted portion thereof, to provide a means for an entrance of the flat portion 18 of the locking lever therein.

In the operation of closing the cover of the receptacle, the handle 20 of the looking member is moved into a horizontal position, as shown in Fig. 4, thereby permitting its entrance in the slot 21 of the depending member 13 secured to the cover 10 as said cover is moved into closed position. When said cover is in closed position, the slots in the depending car 13 and in the wall 12 of the receptacle are in alinement, and the locking member is then moved into a normal and locking horizontal position, as shown in Fig. 2, where it is maintained in said position by gravity.

In the locking position the corresponding parallel walls 16 and 17 of the slotted portion of the depending lug 13 of the cover and of the wall 12 of the receptacle are in engagement with said locking member. The cover is thereby restrained against movement toward the removal because of its engagement with the parallel walls of said slots.

I claim: 7

1. V A look for receptacles having a removable cover portion and a wall portion, both locking strlp extended through said slots.

of said portions being formed with sectoral openings therein, arranged for substantial alinement inthe closed condition of said receptacle, and strip. disposed in said openings to lock said portions together. 7

21A lock for receptacles having a mov able cover portion and a all portion formed with diametrically opposed sectoral slots in said portions arranged in alinenient in the'closed position of the cover, and a 3. A look for receptacles having-a body portion, and a removable cover portion, said portions being formed with openings there in,fa locking strip arranged in the opening 1 infone of said portions, and adapted to en M ter the opening'in the other of said portionsto'lock the receptacle, said other portion having-a slot therein extended from an edge'ith'ereof to the opening to-admit said locking'strip into'theopening.

v 4'. A look for receptacles having a body portion and a removable cover portion formed With sectoral openings in bothof said portions arranged to be in substantial ali'nement in the closed condition of the re-' ceptacle, and a flat locking strip extended opies zof this patent may be obtained for through said openings for locking the receptacle, one of said openlngs having two opposing abutnients which are adapted to conjointly engage the opposite'sides of the locking strip to prevent the unlocking of the re- .v ceptaele.

-formed With a slot therein extended from an edge thereof to the opening therein to admit said locking strip in the closing movement of said cover portion.

In testimony whereof, I have signed my name to this specification, in the presence of two subscribing Witnesses.

' CHESTER D. AINSVVORTH.

Witnesses:

GORDON CAMERON, T. T. GREENWOOD.

five cents each, by addressing the Commissioner of Patents Washington, D. C. 

